55011072155 has 32 divisors (see below), whose sum is σ = 72332120448. Its totient is φ = 39915878400.

The previous prime is 55011072133. The next prime is 55011072161. The reversal of 55011072155 is 55127011055.

It is not a de Polignac number, because 55011072155 - 2²⁴ = 54994294939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4081187 + ... + 4094643.

It is an arithmetic number, because the mean of its divisors is an integer number (2260378764).

Almost surely, 2^55011072155 is an apocalyptic number.

55011072155 is a deficient number, since it is larger than the sum of its proper divisors (17321048293).

55011072155 is a wasteful number, since it uses less digits than its factorization.

55011072155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14567.

The product of its (nonzero) digits is 8750, while the sum is 32.

The spelling of 55011072155 in words is "fifty-five billion, eleven million, seventy-two thousand, one hundred fifty-five".